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| Chapter 1 Earth's Atmosphere/Mirabello |
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| Earth's atmosphere is important to living things because it |
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| Provides all the gases needed |
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| The 2 most abundant gases in the atmosphere are |
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| In addition to gases air also contains |
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| The less mass in a given volume of air the |
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| The National Weather Service measures air pressure in units called |
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| Instruments used to measure air pressure are called |
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| As you rise farther in the atmosphere air pressure |
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| The layer in our atmosphere in which weather occurs is the |
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| From Earth to space the main layers in our atmosphere are |
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| Troposphere, stratosphere, mesosphere, thermosphere |
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| Earth's atmosphere contains about 4 times as much nitrogen as |
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| The gases in our atmosphere aside from oxygen & nitrogen make up what percentage of air? |
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| A form of oxygen with 3 oxygen atoms in each molecule |
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| Water vapor is water in the form of a |
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| The layers of the atmosphere are classified according to changes in |
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| Density can be determined by using |
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| The condition of Earth's atmosphere at a particular time & place is known as |
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| The name of the molecule that is made up of 3 oxygen atoms is |
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| The gas that is found in the greatest amount in the atmosphere is |
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| The DENSITY of air can be calculated if |
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| The mass & volume of air are known |
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| On a mountaintop a person becomes out of breath quickly because fewer |
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| Oxygen molecules are present |
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| The 6 layers of the atmosphere from Earth's surface up are |
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| Troposphere, Stratosphere, Mesosphere, & Ionosphere and Exosphere which make up the Thermosphere |
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| Earth's weather occurs in |
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| Characteristics of the Thermosphere |
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| The thermosphere is the outer most layer extending from 80 km into space, it is divided into the ionosphere & exosphere, gas molecules are spread very far apart and it is very hot |
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